<template>
	<view  v-if="goods_info.goods_name" class="goods-detail-container">
        <!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
		    <swiper-item v-for="(item,index) in goods_info.pics" :key="index">
		        <image :src="item.pics_big" @click="preview(index)">
		    </swiper-item>
		</swiper>
        
        <!-- 商品信息区域 -->
        <view class="goods-info-box">
            <!-- 商品价格区域 -->
            <view class="price">￥{{goods_info.goods_price}}</view>
            
            <!-- 商品信息主体区域 -->
            <view class="goods-info-body">
                <!-- 商品的名字 -->
                <view class="goods-name">{{goods_info.goods_name}}</view>
                
                <!-- 收藏 -->
                <view class="favi">
                    <uni-icons type="star" size="18" color="gray"></uni-icons>
                    <text>收藏</text>
                </view>
            </view>
            
            <!-- 运费 -->
            <view class="yf">快递: 免运费</view>
        </view> 
        
        <rich-text :nodes="goods_info.goods_introduce"></rich-text>
        
        <!-- 商品导航组件区域 -->
        <view class="goods_nav">
            <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
        </view>
	</view>
</template>

<script>
    import { mapState, mapMutations ,mapGetters } from 'vuex'
	export default {
        computed: {
            ...mapState('m_cart',[]),
            ...mapGetters('m_cart',['total']),
        },
        
        watch: {
            // total(newValue) {
            //     const findResult = this.options.find(x => x.text === '购物车')
                
            //     if(findResult) {
            //         findResult.info = newValue
            //     }
            // }
            
            total: {
                handler(newValue) {
                    const findResult = this.options.find(x => x.text === '购物车')
                    if(findResult) {
                        findResult.info = newValue
                    }
                },
                immediate: true
            }
        },
        
		data() {
			return {
				goods_info: {}, //商品详情数据
                options: [{
                            icon: 'shop',
                            text: '店铺',
                            infoBackgroundColor:'#007aff',
                            infoColor:"red"
                        }, {
                            icon: 'cart',
                            text: '购物车',
                            info: 0
                        }],
                        buttonGroup: [{
                          text: '加入购物车',
                          backgroundColor: '#ff0000',
                          color: '#fff'
                        },
                        {
                          text: '立即购买',
                          backgroundColor: '#ffa200',
                          color: '#fff'
                        }
                        ]
			};
		},
        
        methods: {
            ...mapMutations('m_cart',['addToCart']),
            async getGoodsDetail(goods_id) {
                try{
                    const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
                    res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display: block;"').replace(/webp/g,'jpg')
                    this.goods_info = res.message
                }catch(e){
                    uni.$showMsg()
                }
            },
            
            preview(index) {
                //调用 uni.previewImage() 方法预览图片
                uni.previewImage({
                    // 预览图片时,默认显示图片的索引
                    current: index,
                    // 所有图片的数组
                    urls: this.goods_info.pics.map(x => x.pics_big)
                })
            },
            
             onClick (e) {
                if(e.content.text === '购物车') {
                    uni.switchTab({
                        url: '/pages/cart/cart'
                    })
                }
            },
            
            buttonClick(e) {
                if(e.content.text === '加入购物车') {
                    // 组织食品信息对象
                    const goods = {
                        goods_id: this.goods_info.goods_id,
                        goods_name: this.goods_info.goods_name,
                        goods_price: this.goods_info.goods_price,
                        goods_count: 1,
                        goods_small_logo: this.goods_info.goods_small_logo,
                        goods_state: this.goods_info.goods_state
                    }
                    console.log(goods)
                    // 调用addToCart方法
                    this.addToCart(goods)
                }
            }
        },
        
        onLoad(options) {
            const goods_id = options.goods_id
            this.getGoodsDetail(goods_id)
        },
	}
</script>

<style lang="scss">
    swiper {
        height: 750rpx;
        image {
            width: 100%;
            height: 100%;
        }
    }
    
    .goods-info-box {
        padding: 10px;
        .price {
            color: #C00000;
            font-size: 18px;
            margin: 10px 0;
        }
        
        .goods-info-body {
            display: flex;
            justify-content: space-between;
            .goods-name {
                font-size: 13px;
                margin-right: 10px;
            }
            
            .favi {
                width: 120px;
                font-size: 12px;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                border-left: 1px solid #efefef;
                color: gray;
                text {
                    margin-top: 5px;
                }
            }
        }
        
        .yf {
            font-size: 12px;
            color: gray;
            margin: 10px 0;
        }
    }
    .goods_nav {
        position: sticky;
        width: 100%;
        left: 0;
        bottom: 0;
        z-index: 999;
    }
    
    // .goods-detail-container {
        // padding-bottom: 50px;
    // }
</style>
